UNIDROIT PRINCIPLES OF INTERNATIONAL COMMERCIAL CONTRACTS 2004(国际统一私法协会国际商事合同通则)PREAMBLE(Purpose of the Principles)These Principles set forth general rules for international commercial contracts.They shall be applied when the parties have agreed that their contract be governed by them.(*)They may be applied when the parties have agreed that their contract be governed by general principles of law, the lex mercatoria or the like.They may be applied when the parties have not chosen an